Asynchronous motor, also called induction motor, is a kind of AC motor, which is produced by the interaction between the air gap rotating magnetic field and the induction current of rotor winding, which can realize the electromechanical energy conversion to mechanical energy.
The advantages：simple structure, stable performance, convenient maintenance and cheap price.
They are divided into squirrel cage motors and
slip ring motors, the difference between them is the rotor. Squirrel cage type motor rotor made of metal strips, copper or aluminum.The rotor of winding motor is made up of copper wire, and the end of coil is led to the starting control device through slip ring. Therefore, the winding motor has the characteristics of small starting current, controllable and large starting torque